Summary: In the animal world, many multicellular animals have cancer but sharks never get cancer.
在生物界中，只有多细胞动物得癌症。偏偏沙鱼不得癌症。
Not only did mammals sweep across the planet after K-T, but sharks expanded across the seas, explained American Museum of Natural History vertebrate paleontologist Jack Conrad.
美国自然历史博物馆脊椎古生物学家Jack Conrad解释说，k - T大灭绝之后，不但哺乳动物开始主宰地球，鲨鱼也开始在海洋中扩张。
They didn't see any seals, but they saw some sharks.
他们没有看到海豹，但是他们看到了一些鲨鱼。
The greater threat to sharks comes not from fishermen, but from Asian gastronomes whose idea of a treat is shark-fin soup.
鲨鱼更大的威胁不是来自渔民，而是来自亚洲的美食家们，他们的人生一大快事就是喝鲨鱼翅汤。
Some people say sharks never get sick but that is not true.
有人说鲨鱼永远不会生病，但事实并非如此。
But we made a commitment to protect sharks.
但是我们许下了承诺要保护鲨鱼。
But even if you aren't advanced enough to wreck dive, you'll find giant sharks, whales, and turtles.
但是即使你没有足够先进的技术去潜水打捞，你也会看到巨大的鲨鱼，鲸鱼和海龟。
Still, the greater threat to sharks comes not from game fishermen but from Asian gastronomes whose idea of a treat is shark’s-fin soup.
但是对鲨鱼更大威胁不是来自渔民，而是来自亚洲的美食家们，他们的人生一大快事就是想喝鲨鱼翅汤。
But even if scientists were able to isolate and identify an Alzheimer 's-curing protein in sharks, they would need to grow it in a controlled environment.
即使科学家能分离和鉴别出鲨鱼中的阿尔兹·海默治愈蛋白，他们仍需将它植在一个可控的环境内。
But over the past few decades conflicting data have sparked a debate about whether sharks can see colors.
不过在过去几十年间，不同的数据引起了对鲨鱼到底能否辨认颜色的争论。
Sure it's got deadly spiders, snakes and sharks, but they don't stop people from coming here, never mind living here.
当然这里有致命的毒蛇，蜘蛛和鲨鱼，但它们不会停下人们来这里的脚步，住在这里一点都不用担心。
Klopper said he was unaware of details, but past speculation has included sonar buoys able to identify sharks and transmit a warning signal.
发言人克劳普说他不知道具体细节，但是之前传闻内容涉及声纳浮标，它能够识别鲨鱼并传出警告信号。
Its report also suggested Yao could take to the court as a player for the Shanghai Sharks, but a spokeswoman said she had not heard anything about him returning to the club.
有报道建议姚明重返上海鲨鱼队，但是该俱乐部发言人说她没有听到任何有关姚明将重返俱乐部的消息。
Dr McComb said that the sharks not only have outstanding forward "stereo-vision" and depth perception, but a respectable stereo rear view too.
麦库姆博士说，这种鲨鱼不仅有不同凡响的向前“立体视觉”和深度知觉，而且有令人佩服的立体后视能力。
Sharks may be able to smell blood from miles away, but they probably don't know how red it is: New research suggests sharks are color-blind.
鲨鱼可以在数英里外就嗅到鲜血的腥味，但是他们很可能并不知道血是红的：最新研究表明，鲨鱼其实是色盲。
Aw shares that excitement when it comes to diving with a dozen whale sharks: "You are sandwiched in, sharks ahead and behind, but you want to be there, " he says.
能在这么近的距离看到它们，太令人激动了。”他分享了潜入水底、与十几条鲸鲨共舞的激动之情：“你被夹在当中，头上和脚底都是鲨鱼，但你偏偏不想离开。
New methods of setting nets have reduced the bycatch of dolphins but not of other species, such as billfish, turtles and sharks.
布设渔网的一些新方法已经减少副捕获物海豚的捕获，但没有减少其它一些生物的捕获，象长嘴鱼、海龟和鲨鱼。
Cape Town's disaster management services had issued a warning hours earlier that sharks had been spotted in the water, but the shark flag was not flying.
事故发生前数小时，开普敦的灾害管理部门曾发出警告，称海中发现鲨鱼，但鲨鱼警告旗并未升起。
But for now squalene is primarily harvested from sharks caught by commercial fishers, especially deepwater species.
目前主要通过从商业渔民捕捞的鲨鱼，尤其是深海鲨鱼身上提取角鲨烯。
I'd be worried about sharks seeing my dangling legs... but that's just me.
我很担心鲨鱼看到这些美腿会怎么样，不过也只有我会关心。
Besides large waves, the harsh chafing of salt water and jellyfish, the passage between Florida and Cuba is full of sharks. But Nyad plans to swim without protection from a shark cage.
除了巨浪、海水对皮肤的粗糙擦损以及水母(蜇咬)，佛罗里达州和古巴之间的水路通道有大量的鲨鱼出没。
A couple pass nearby, giving him the eye. Like reef sharks they will size you up, but seldom attack something their own size unless it is in distress.
杰克看到更多斑溪兽盘旋而下.一对斑溪给他个白眼后从附近掠过.他们会像珊瑚礁鲨鱼一样打量你但很少攻击与它们大小相仿的东西除非它遇到危险.
The swim out to the wreck swim was great, but no sharks have been spotted, yet.
游泳到沉船那里去很好，但是没能看见鲨鱼。
Huge, docile whale sharks live in oceans around the world, but no one knows where they breed, their migration routes, or even how many there are.
巨大、温顺的鲸鲨生活在世界各处的海洋里，然而没有人知道它们在那里繁殖、它们的迁移路径，甚至还不知道它们究竟有多少。
A third species, thresher sharks, also showed "directed walking" like the tigers, but on much smaller scales.
另一种鲨鱼，长尾鲨同样能够像虎鲨那样“直来直去”，但是活动区域较小。
This retinal system means sharks are able to tell between shades of grey but, most probably, not between colors, say the investigators.
研究人员表示，这样一种视网膜结构意味着，鲨鱼能够分辨灰色的不同阴影，但很有可能无法分辨各种颜色。
These companies say that lower rate caps would discourage lending to anyone but the most reliable borrowers, driving the rest towards loan sharks who charge truly exorbitant interest rates.
那些公司说道过低的上限将迫使资金只出借给那些最可靠的借款者。而将剩下的则拱手让给了那些高利贷者。
There weren't any sharks, but there were some really clever seals.
没有鲨鱼，但有些相当聪明的海豹。
A lot of skates and rays and the chimaeras are not as charismatic as white sharks or whale sharks or a manta ray, but these things are probably taken in far greater numbers in terms of by-catch.
许多鳐和蝠和嵌合体很多都没有白鲨或鲸鲨或蝠魟有魅力，但这些研究可能获得更大数目的渔获物。
A lot of skates and rays and the chimaeras are not as charismatic as white sharks or whale sharks or a manta ray, but these things are probably taken in far greater numbers in terms of by-catch.
许多鳐和蝠和嵌合体很多都没有白鲨或鲸鲨或蝠魟有魅力，但这些研究可能获得更大数目的渔获物。
应用推荐